Carpenter&#39;s tool.



E. H. LEN.

GARPENTERS TOOL.

APPLICATION FILED APR.25, 1912.

Patanted Mar. 25, 1913.

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CARPENTERS TGO'L.

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Specification of Letters Itatent,

Patented Mar. 25, 11913.

- Applicationfilcd April 525, 1912. Serial No. 893,191.

T all whom it may concern:

Be it known that I, ERIC H. LEN, a subject of the King of Sweden, residing at Los Angeles, in the county of; Los .Angeles, State of California, have invented a certain new and useful CarpentersTool; and I do hereby declare thefollowing to be a full,

clear, and exact description of the invention, such as will enable others skilled in the artto which it appertains to make and use the same.

This invention relates to a 'carpenters tool, more particularly to one adapted to be conveniently used to mark or'scribe the notches or housings usually made in the strings of stairs to receive and hold therein the end portions of the riser and tread of the steps, and it may be said to consist in the provision of the novel features, and in the novel and improved construction, arrangement and combination of parts in the tool as will be apparent from the description and claim which follow hereinafter.

Objects of the invention are to provide a novel and improved tool of the nature specified, which is simple in construction, economical to manufacture, easily and quickly adjustable, strong and durable, and

convenient and efl'ective in use.

Other objects and the advantages of the invention Will be apparent to those skilled in the art from a consideration of the fol lowing description of the preferred'iorm of' construction embodying the invention taken in connection Withthe accompanying drawings, in which- Figure 1 is a perspective view of the tool, the nosing block being omitted; Fig. 2 is a view of parts that may be used for holding Q and locking in position the straight edge on the angle part, and Fig. 3 is a partial pen spective View of the angle part, showing the nosing block attached thereto.

The straight edge 2 may be provided rearwardly thereof with a suitable handle 3. In the end portions of the straight edge 2 are provided slots which extend from the front to the rear of the straight edge, and slots 5 which extend through the up per and lower sides of the straight edge and communicate with the slots a. The angle part ti, preferably steeL may be formed to provide the legs 1 and 8 having the outer edges t and 1d thereotiormed straight and disposed at right anglesv to each other, and

the extension 11 of the leg 7 which extends.

beyond the outer edge 10 of the leg 8 and is adapted for marking the nosing on the tread of the steps of the stairs. Both sides or the legs 7 and 8 at the outer edges 9 and 10 thereof may have thereon suitable graduations. 12 of linear measure.

' In order to readily mark notchings "which are to receive wedges to hold the stepsin the the main portion of the leg 7 so that by turning the nut 17 the slantjof the inner edge 16 may be varied at will.

As seen in Fig. 1, the legs 7 and 8 pass freelythrough the slots at and are provided with longitudinal slots 18. Any suitable means may be employed to lock the legs 7 and 8 in adjusted position in the slots 4 of the straightedge 2; that shown consisting of a threaded pin 19, adapted to pass through the slots 5 and 18 and provided with a head 20 and a squared portion 21 adapted to fit in the slots 5, and a nut 22 which fits the pin 19 and may be turned to permit adjustment of the legs 7 and 8 in the straight edge 2 and to lock the legs and straight edge in adjusted position.

In order that the various forms of 1105- ings for the tread of the steps may be easily marked, the leg. 7 may be provided With slots 23'adjacent to the extension .11, Whereby a'block 24=having the desired form of nosing 25 thereon may be secured to the leg 7 by means of screws 26 the slots 23. I

From the foregoing the use of the tool will be readily understood by those skilled in the art,- it being apparent that the straight edge 2 may be placed-against the passing through lower edge o'f'the string and the legs 7 and 8' respectively adjusted to the idth of. the tread and the height of the riser of the steps, whereupon-. the,notchings in the string may r edge provided with slots therethrough, an

be marked-in "the well-known manner by moving a scriber along the inner and the outer edges of the legs 7 and 8.

i I claim? I A earpenters tool consisting of a straight angle part having graduated legs passing through said-slots, said legs having the outer edge thereof straight,- one of said legs having an adjusting nutn iounted thereon and having the inner edge portion thereof split, a screw pivotally connected with the free end of said I nner edge po'rtionand passing through said adjusting nut, and one of said legs having slots therein for screws to hoid a black hav- 15 ing the desired form of nosing, substantially as deseribed.

In testimony whereof, I have signed my name to this specification in'the presence of two subscribing witnesses at Los Angeles, 20

county ofLos Angeles, State ofiCalifornia,

.this 19th day of April A. D. 1912.

'ERIO H. LEN. Witnesses:

HARRY A. BROOKS, v A. H. LIDDERS. 

